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Growth and Nutrition of Bacteria

Growth and Nutrition of Bacteria
The organism which grows best above 45°C are called

thermophilic
mesosphilic
any of these
psychrophilic

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Growth and Nutrition of Bacteria
The straightforward method of binary fission explains how bacteria

reproduce
grow in nutrient agar
move
evolve

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Growth and Nutrition of Bacteria
Antimicrobial constituents for the microbial growth in foods are

intrinsic factor
both (a) and (b)
none of these
extrinsic factor

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Growth and Nutrition of Bacteria
A synergistic effect is observed when

one organism removes an inhibitory substance for another
microbial alteration of pH, aw, Eh favours the growth of another
one organism produces a growth factor utilized by another
All of these

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Growth and Nutrition of Bacteria
Which of the following has more tolerance for acidic pH (lower pH)?

Bacteria
Yeast and moulds
None of these
E. coli

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Growth and Nutrition of Bacteria
The term facultative anaerobe refers to an organism that

uses oxygen when present or grows without oxygen when absent
doesn't use oxygen but tolerates it
is killed by oxygen
requires less oxygen than is present in air

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